Home / 84,045.46-115,983.26-46,319.71

Finding the Fourth Proportional to 84,045.46, 115,983.26 and 46,319.71

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Solution

The fourth proportional to 84,045.46, 115,983.26 and 46,319.71 is: 63,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,045.46 : 115,983.26 = 46,319.71 : x
  2. Step 2: Convert to fraction form
    84,045.46/115,983.26 = 46,319.71/x
  3. Step 3: Cross multiply
    84,045.46x = 115,983.26 × 46,319.71
  4. Step 4: Simplify right side
    84,045.46x = 5,372,310,503.94
  5. Step 5: Solve for x
    x = 5,372,310,503.94/84,045.46
  6. Step 6: Final answer
    x = 63,921.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.